Info

This question is closed. Reopen it to edit or answer.

Why this code is error???

1 view (last 30 days)
Jukkrid Boonlkom
Jukkrid Boonlkom on 15 Feb 2018
Closed: MATLAB Answer Bot on 20 Aug 2021
clc,clear all,close all;
x = [0 1 2 3];
y = [0 1 2 3];
f3 = 6./(factorial(x).*factorial(3-x));
f4 = 24./(factorial(y).*factorial(4-y));
f5 = 120./(factorial(3+(-x)+(-y)).*factorial(2+x+y));
mpd = (f3.*f4.*f5)./220;
stem3(x,y,mpd);
xlabel('x'); ylabel('y'); zlabel('mpd');
  2 Comments
RB Blackstone
RB Blackstone on 16 Feb 2018
This part of the equation produced negative integers.
>> 3+-x+-y
Ans = 3 1 -1 -3
Factorial() requires non-negative integers.

Answers (1)

C.J. Harris
C.J. Harris on 15 Feb 2018
Because given your definitions of x and y, the expression 3+(-x)+(-y) results in [3 1 -1 -3], and you cannot calculate the factorial of a negative number.
  2 Comments
Jan
Jan on 16 Feb 2018
@Jukkrid Boonlkom: How could the readers know, what you want to do. All we see is the failing code, which cannot work for mathematical reasons. This does not allow to suggest a modification, because you did not tell yet, what you want to calculate.

Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by